The low temperature resistivity and thermopower of variable density two-dimensional hole systems (2DHSs) exhibiting metallic behavior at zero magnetic field were measured. It was observed that the diffusion thermopower exhibits an anomalous sign reversal in a narrow range of density in the metallic regime.
|Original language||English (US)|
|Number of pages||4|
|Journal||Physical review letters|
|State||Published - Nov 13 2000|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)